The Effects of Valsalva Maneuver on Head, Neck and Upper Extremity Arterial Systems

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT02832310

Enrollment

Registered

2016-07-14

Start date

2016-04-30

Completion date

2016-07-31

Last updated

2018-02-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Asymptomatic Diseases

Keywords

valsalva

Brief summary

The aim of this study is to determine the relation between arterial diameter and flow of carotis interna, brachial artery and radial artery before and after valsalva maneuver.

Detailed description

The aim of this study is to determine the relation between arterial diameter and flow of carotis interna, brachial artery and radial artery before and after valsalva maneuver. A total of 70 patients in preoperative period will enroll in this study. After a deep inspiration, patients will asked to exhale to a valf system with a flow pressure of 20-40 mmHg and duration of 15 seconds. During valsalva maneuver, the diameter and flow rates of carotis interna, brachial artery and radial artery will measure using ultrasound. All data will be recorded.

Interventions

PROCEDUREvalsalva maneuver

the effects of valsalva maneuver on arterial pressure

Study design

Observational model

CASE_ONLY

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 40 Years

Healthy volunteers

Yes

Inclusion criteria

* American Society of Anesthesiologists score of I, II, III

Exclusion criteria

* Morbid obesity (body mass index over 40) * Not to participate in the study * Psychiatric diseases * Peripheral vascular diseases

Design outcomes

Primary

Measure	Time frame
arterial flow rate	1 year

Secondary

Measure	Time frame
arterial diameter	1 year

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026